[PATCH] D13710: New X86 FMA3*_Int opcodes for scalar FMA intrinsics.

[Elena Demikhovsky via llvm-commits]

delena added a subscriber: delena.
delena added a comment.

Is it possible to convert intrinsic to FMA node in DAG lowering phase, like we did in X86IntrinsicInfo.h?


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Comment at: llvm/lib/Target/X86/X86InstrInfo.cpp:1737
@@ -1736,2 +1736,3 @@
     { X86::VFMADDSSr231r,         X86::VFMADDSSr231m,         TB_ALIGN_NONE },
+    { X86::VFMADDSSr231r_Int,     X86::VFMADDSSr231m_Int,     TB_ALIGN_NONE },
     { X86::VFMADDSDr231r,         X86::VFMADDSDr231m,         TB_ALIGN_NONE },
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Do you have a test that checks memory folding of intrinsic?

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Comment at: llvm/test/CodeGen/X86/fma-intrinsics-phi-213-to-231.ll:171
@@ +170,3 @@
+; CHECK-NEXT: retq
+define <4 x float> @fmaddsubps_loop_128(i32 %iter, <4 x float> %a, <4 x float> %b, <4 x float> %c) {
+entry:
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Why do you need so long test in order to check only one operation? The comment is related to all tests.


http://reviews.llvm.org/D13710